44 Obtaining Gimp 48 Chapter 5: Gimp For Photoshop Users .......................... 55 Why Should I Use Gimp When I Have Photoshop? 56 Migrating To Gimp 59 Some Final Notes 70 learn how to use Gimp without having to go through the basics of image manipulation. We’ll explain why you want Gimp when you have Photoshop. We’ll also try to point out the differences between Gimp and started right away. 56 T h e G i m p Us er ’ s M a n u a l Gi m p For Phot osh o p U se r s WHY SHOULD I USE GIMP WHEN I HAVE PHOTOSHOP? Perhaps you reckon that you already have the best of the

it surely is not a selection GNU Image Manipulation Program 59 / 653 that you wanted to keep, so why have you gotten this far in the first place? If you can see a selection but thought you were inside vary from system to system; any file can be renamed to have any extension; and there are many reasons why a file name might lack an extension. Instead, GIMP first tries to recognize a file by examining its the currently active layer are shown outlined with a black-and-yellow dashed line. The main reason why this matters is that you cannot do anything to a layer outside of its boundaries: you can’t act on

contained no pixels. If this was the case, it surely is not a selection that you wanted to keep, so why have you gotten this far in 48 CHAPTER 4. GETTING UNSTUCK 4.1. GETTING UNSTUCK the first place? vary from system to system; any file can be renamed to have any extension; and there are many reasons why a file name might lack an extension. GIMP first tries to recognize a file by examining its contents: the currently active layer are shown outlined with a black-and-yellow dashed line. The main reason why this matters is that you cannot do anything to a layer outside of its boundaries: you can’t act on

perfectly possible to snap to the grid even if the grid is not visible. It isn't easy to imagine why you might want to do this, though.) Guides In addition to the image grid, GIMP also gives you from system to system; any file can be renamed to have any extension; and there are many reasons why a file name might lack an extension. Instead, GIMP first tries to recognize a file by examining its and a "tail." The head is the first element of the list, the tail the rest of the list. You'll see why this is important when we discuss how to add to lists and how to access elements in the list. Creating

Understand the basics of x-ray computed tomography and the Al-Zn solidification dataset • Describe why accurate segmentations are important in studying phase transformations • Use the GIMP software to

Black acts as the transparent area – Level of gray in between determines the level of visibility. Why use an alpha channel? 0 50 100 150 200 250 0 50 100 150 200 250 In GIMP – Layer > Transparency

overwrite the original image you will not be able to get the image back to its original state. That is why it is called a Lossy Format Josianne Mallia 7 Brief Notes on Introduction to Gimp Interface